42S statistics registers

[Werner]

One more thing: if you enable LINΣ mode, the 7 ln-type registers are not valid either.
Flags 61, 62 and 63 will however only be set the first time you use Σ+.
So I shamelessly (but gratefully) copied your program, but I use

Code:

 FS? 60
 FS? 61 (62,63 as appropriate)
 GTO 99

to test for Invalid recall requests.

BTW where did you find this info on flags 61-63?

Cheers, Werner